Comment 6 for bug 1851013

OK, I did the test. Indeed this bug is similar as bug https://bugs.launchpad.net/hplip/+bug/1851013
I edited a line in /usr/share/hplip/data/models/models.dat as suggested.
Note that I have now this info in the file mentioned above:

[hp_colorlaserjet_mfp_m278-m281]
...
ppd-name=hp-color_laserjet_mfp_m278-m281-ps.ppd
...

Note the inconsistent use of the _ in color_laserjet and colorlaserjet

After editing the line I ran hp-setup and the printer was detected. After this, scanning via SimpleScan works as expected.

I leave it up to you to leave this bug open or to close it as duplicate of an external bug.